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Sequoia a x1551 Industrial rid' <br /> 1 � sari Carlos cap 94070-41111 <br /> (650)232-9600 <br /> Analytical FAX(650)232-9612 <br /> I <br /> Gettler-Ryan/Geostrategies(l) Project Unocal(1) Sampled 11/23/99 r a W <br /> 6747 Sierra Court, Suite D Project Number Unocal SS#0187/Job#280045 Received 111/24/99 <br /> Dublin,CA 94568 Project Manager Deanna Harding Reported 12/10/99 <br /> Sample Description: U-6 <br /> Laboratory Sample Number:T -` y ~- 011275-07 <br /> Batch Date Date Specific Method/ Reporting <br /> [Analyte Number Prepared Analyzed Surrogate Limits Limit Result Units Notes" <br /> Sequoia Analytical-San Carlos+ <br /> Total Puraeable Hydrocarbons(C6-C12),BTEX and MTBE by_DHS LUFT <br /> Purgeable Hydrocarbons as Gasoline 9120023 12/6199 1216/99 500 ND ug/1 <br /> Benzene il 0 500 103 tI <br /> ' <br /> Toluene 0 500 7.35 " <br /> Ethylbenzene "' 0 500 0.790 " <br /> I <br /> Xylenes(total) 0 500 407 , <br /> Methyl tert-butyl ether 500 ND " <br /> Surrogate a,a,a-Trifuorotoluene ", 200-130 w 976 % <br /> Volatile Organic Oxygenated Compounds by EPA Method 8260A r <br /> Ethanol 9120004 12/1/99 1211/99 1000 ND ug/l <br /> Tert-butyl alcohol 11 1. " 200 ND " <br /> Methyl tert-butyl etherw — _ 200 _321 <br /> 21 <br /> Di-isopropyl ether �" 200 ND <br /> Ethyl tert-butyl ether " ' Y r 200 ND <br /> Tert-amyl methyl ether _ 2 00 ND <br /> Surrogate 1 2-Dichloroethane-d4 — "--- 760-114 ------------- --112 % <br /> , <br /> II <br /> V , <br /> 1 <br /> , <br /> II <br /> { ' I <br /> 1 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> a <br /> Page 8 of 28 <br />